apl-expression-coding v1.0.0

Expression Coding

Write programs in a textual manner by writing and matching expressions line by line

Features

• Multiple matching strings for a definition

Feature Roadmap

• Comprehensive built-in library of functions
• Import 3rd party definitions
• Async by default

How it works

1. Write a definition

Type define: followed by a string you want to match, variables are captured using curly brackets {var_name}

The lines that follow become the steps of your definition

Note {a}+{b}={c} is a match that is included in the library

define: type something here that includes {a} or {b} giving {c}
a + b = c

2. Use your definition in another or in your main program

Note: the string main: is only needed if your script contains other definitions

main:
my_var = 2
another_var = 3
type something here that includes my_var or another_var giving output
print output

Library definitions

There are a few built-in definitions that can be used, including:

{a} = {b}

set {a} to {b}

{a} * {b} = {c}

{a} / {b} = {c}

concat {a} and {b} to give {c}

print {a}

How to use this library

Install via npm i apl-expression-coding then

import { runCode } from 'apl-expression-coding';

const output = runCode(myExpressionsCodeStr);

console.log(output);

Note: the common library (listed above) is not included by default, to add simply import and run it with your code, via:

import { runCode, lib } from 'apl-expression-coding';

const output = runCode(lib + myExpressionsCodeStr);

console.log(output);

For hardcore developers

You can code your own low-level definitions by using defineJS, for example:

defineJS: {a}+{b}={c}
c.set(parseFloat(a.get()) + parseFloat(b.get()))